Home / 20,670.13-31,007.49-6,626.86

Finding the Fourth Proportional to 20,670.13, 31,007.49 and 6,626.86

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Solution

The fourth proportional to 20,670.13, 31,007.49 and 6,626.86 is: 9,941.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,670.13 : 31,007.49 = 6,626.86 : x
  2. Step 2: Convert to fraction form
    20,670.13/31,007.49 = 6,626.86/x
  3. Step 3: Cross multiply
    20,670.13x = 31,007.49 × 6,626.86
  4. Step 4: Simplify right side
    20,670.13x = 205,482,295.18
  5. Step 5: Solve for x
    x = 205,482,295.18/20,670.13
  6. Step 6: Final answer
    x = 9,941.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.